Play it cool! Don't sound too rehearsed and don't get upset if they disagree to your argument ! And as said before don't whine because that will make them cross and possibly change their opinion :)
Honestly, you can't convince them. Either they will let you or they won't.
if your parents wont let you get sponsored, well, id yell at em.
you say parents are going with
you ask them
I have the same question!
make a deal with them and stick to it :)
come out of the closet
tell them you want rats
be a good kid
say please
Tell them its a Spanish trip and your parents are allowed to go !
You don't. If you want one get it when you are 18.